M651 series 40-MM CS

[jvollenberg]

Does anyone have good images of the M651 series cartridges and projectiles?

We are also looking for images of the M581 series of fuzes for these items as well.

We are updating the 60-Series publication and need some good images for use in this publication.

Thanks,

Joe

 

[inertordnance]

Xm651 e1

Hey Joe,

Stay safe,

Frank

 

[EODGUY]

Joe,

Not the best photos in the world with my cheap camera, but it might he a start. The two with the yellow bands are test projectile loadings of weighted but inert filled projectiles for ballistics and training use. As you know one of the ID features of this round are the six notches in the rim of the cartridge case for identification at night. I do not have a model number for the cartridge case itself. I have never seen a case with the case number on it, nor is it in any references I have. The case primer is the M42 (Same one also used in the fuze, along with the M55 detonator.) and the propellant charge is the M9. My complete round is inert filled and is therefore not stenciled unfortunately. The only difference I know of between the M651 and the M651E1 is the top surface of the fuze (you can't see it from the outside of the projectile), but there could be other differences. The M651 uses an M581 fuze where the very top of the fuze cover is flat. The M651E1 uses the M581E1 fuze where the top of the fuse cover is concave. Bob

 

[jvollenberg]

Thanks guys ... just what I needed.

Joe

 

[inertordnance]

Here is a cartridge diagram also.

 

[jvollenberg]

Bob,

Did the experimental / training rounds have nomenclatures? Was the measurements the same as the actual rounds? Also did they use one for a particular round (one for the M651 and one for the M651E1)? I know you probably don't have much on them, but we were curious.

Joe